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mag drive

  1. Equipment
    So I have a current pump in my sump and I need opinions as to hoe to increase my flow. I currently have a Hydor koralia 425 ad a small Powerhead about 200gph hooked up to a spraybar. But it's coming out so don't count it for now. The pump in the sump is about 400gph. I have 6 options I can...